Composition for the removal of scale from steam-boilers.



UN TED STATES PATENT QFFICE.

LANOELET WILLIAM THOMPSON, or HOBART MILLS, CALIFORNIA- COMPOSITION FOR THE REMOVAL OF SCALE FROM STEAM-BOILERS.

Application tiled June 29, 1905 To all whom it nmy con/corn:

Be it known that I, LANCELE'I \VILLIAM 'Iluoursox, a citizen of the United States, residing at l'lobart Mills, in the county of Nevada and State of California, have invented a new and useful composition of matter to be used for the removal of scales from steamboilers and the prevention of the formation of scales in steam-boilers, of which the following is a specification.

My composition consists of the following ingredients, combined in the proportions stated--viz., potatoes, (ground very iine,)l. pounds; brown sugar, three pounds; kerosene, one quart. These ingredients are to be thoroughly mingled by agitation.

In using the above-named composition the amount would vary with the size of the boiler; but taking, for example, a one-hundred-horsepower steam-boiler, tirst wash out the boiler and then put in it one gallon of the compound and let it remain in the boiler four or live days and then blow the boiler down two gages, or thereabout, once a day, and it the water is bad and has a tendency to foam use one halfpint a day until the water settles. 'hcn the boiler is washed out, if the boiler is not clean repeat operation, and at the end of three months the worst cases will yield. After the boiler is clean it washed out once in every two weeks one half-gallon of the composition will keep the boiler clean and free from scale,

- and it the period for washing out the boiler Specification of Letters Patent.

Patented Sept. 5, 1905.

Serial No. 267,616.

is longer a correspondingly larger amount must be used.

The compound can be put into the boiler either by a pump or an injector. The amount to be used can be increased or decreased according as conditions suggest to the engineer.

This composition has been put to practical tests, and competent engineers have satisfied themselves that in forty or titty days they can clean an engine-boiler more effectually than a man working by mechanical means can in a month.- The scales loosen and drop ofl from all parts of the boiler, and the work is complete at a nominal cost. I have never heard of any composition for such purpose the same or similar to mine.

I claim 1. The herein described composition of matter consisting of potato, brown sugar and kerosene, substantially as described and for the purpose specified.

2. The herein described composition of matter for removing scales from steam-boilers and for the prevention of the formation of scales insteam-boilers, consisting in quantities to the gallon tour and one-fourth pounds of potatoes, three pounds of brown sugar and one quart of kerosene, substantially as described.

l rAXCl lhE'l Wlhhld THOMPSON. \Vitnesses:

Gnonon Annmrr DowNINo, LANCELET TuoMrsoN. 

